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<span class=com>#------------------------------------------------------------------------------
# File:         example.config
#
# Description:  Example user configuration file for Image::ExifTool
#
# Notes:        This example file shows how to define your own shortcuts and
#               add new EXIF, IPTC, XMP, PNG, MIE and Composite tags, as well
#               as how to specify preferred lenses for the LensID tag, and
#               define new file types and default ExifTool option values.
#
#               Note that unknown tags may be extracted even if they aren't
#               defined, but tags must be defined to be written.  Also note
#               that it is possible to override an existing tag definition
#               with a user-defined tag.
#
#               To activate this file, rename it to ".ExifTool_config" and
#               place it in your home directory or the exiftool application
#               directory.  (On Windows and Mac systems this must be done via
#               the command line since the GUI's don't allow filenames to begin
#               with a dot.  Use the "rename" command in Windows or "mv" on the
#               Mac.)  This causes ExifTool to automatically load the file when
#               run.  Your home directory is determined by the first defined of
#               the following environment variables:
#
#                   1.  EXIFTOOL_HOME
#                   2.  HOME
#                   3.  HOMEDRIVE + HOMEPATH
#                   4.  (the current directory)
#
#               Alternatively, the -config option of the exiftool application
#               may be used to load a specific configuration file (note that
#               this must be the first option on the command line):
#
#                   exiftool -config example.config ...
#
#               This example file defines the following 16 new tags as well as
#               a number of Shortcut and Composite tags:
#
#                   1.  EXIF:NewEXIFTag
#                   2.  GPS:GPSPitch
#                   3.  GPS:GPSRoll
#                   4.  IPTC:NewIPTCTag
#                   5.  XMP-xmp:NewXMPxmpTag
#                   6.  XMP-exif:GPSPitch
#                   7.  XMP-exif:GPSRoll
#                   8.  XMP-xxx:NewXMPxxxTag1
#                   9.  XMP-xxx:NewXMPxxxTag2
#                  10.  XMP-xxx:NewXMPxxxTag3
#                  11.  XMP-xxx:NewXMPxxxStruct
#                  12.  PNG:NewPngTag1
#                  13.  PNG:NewPngTag2
#                  14.  PNG:NewPngTag3
#                  15.  MIE-Meta:NewMieTag1
#                  16.  MIE-Test:NewMieTag2
#
#               For detailed information on the definition of tag tables and
#               tag information hashes, see lib/Image/ExifTool/README.
#------------------------------------------------------------------------------

<a name='Shortcuts'># Shortcut tags are used when extracting information to simplify
# commonly used commands.  They can be used to represent groups
# of tags, or to provide an alias for a tag name.</a></span>
%Image::ExifTool::UserDefined::Shortcuts = (
    MyShortcut =&gt; ['exif:createdate','exposuretime','aperture'],
    MyAlias =&gt; 'FocalLengthIn35mmFormat',
);

<span class=com># NOTE: All tag names used in the following tables are case sensitive.

<a name='UserDefined'># The %Image::ExifTool::UserDefined hash defines new tags to be added
# to existing tables.</a></span>
%Image::ExifTool::UserDefined = (
    <span class=com># All EXIF tags are added to the Main table, and WriteGroup is used to
    # specify where the tag is written (default is ExifIFD if not specified):</span>
    'Image::ExifTool::Exif::Main' =&gt; {
        <span class=com># Example 1.  EXIF:NewEXIFTag</span>
        0xd000 =&gt; {
            Name =&gt; 'NewEXIFTag',
            Writable =&gt; 'int16u',
            WriteGroup =&gt; 'IFD0',
        },
        <span class=com># add more user-defined EXIF tags here...</span>
    },
    <span class=com># the <a href="geotag.html">Geotag feature</a> writes these additional GPS tags if available:</span>
    'Image::ExifTool::GPS::Main' =&gt; {
        <span class=com># Example 2.  GPS:GPSPitch</span>
        0xd000 =&gt; {
            Name =&gt; 'GPSPitch',
            Writable =&gt; 'rational64s',
        },
        <span class=com># Example 3.  GPS:GPSRoll</span>
        0xd001 =&gt; {
            Name =&gt; 'GPSRoll',
            Writable =&gt; 'rational64s',
        },
    },
    <span class=com># IPTC tags are added to a specific record type (eg. application record):
    # (Note: IPTC tag ID's are limited to the range 0-255)</span>
    'Image::ExifTool::IPTC::ApplicationRecord' =&gt; {
        <span class=com># Example 4.  IPTC:NewIPTCTag</span>
        160 =&gt; {
            Name =&gt; 'NewIPTCTag',
            Format =&gt; 'string[0,16]',
        },
        <span class=com># add more user-defined IPTC ApplicationRecord tags here...</span>
    },
    <span class=com># XMP tags may be added to existing namespaces:</span>
    'Image::ExifTool::XMP::xmp' =&gt; {
        <span class=com># Example 5.  XMP-xmp:NewXMPxmpTag</span>
        NewXMPxmpTag =&gt; { Groups =&gt; { 2 =&gt; 'Author' } },
        <span class=com># add more user-defined XMP-xmp tags here...</span>
    },
    <span class=com># special Geotag tags for XMP-exif:</span>
    'Image::ExifTool::XMP::exif' =&gt; {
        <span class=com># Example 6.  XMP-exif:GPSPitch</span>
        GPSPitch =&gt; { Writable =&gt; 'rational', Groups =&gt; { 2 =&gt; 'Location' } },
        <span class=com># Example 7.  XMP-exif:GPSRoll</span>
        GPSRoll  =&gt; { Writable =&gt; 'rational', Groups =&gt; { 2 =&gt; 'Location' } },
    },
    <span class=com># new XMP namespaces (eg. xxx) must be added to the Main XMP table:</span>
    'Image::ExifTool::XMP::Main' =&gt; {
        <span class=com># namespace definition for examples 8 to 11</span>
        xxx =&gt; { <span class=com># &lt;-- must be the same as the NAMESPACE prefix</span>
            SubDirectory =&gt; {
                TagTable =&gt; 'Image::ExifTool::UserDefined::xxx',
                <span class=com># (see the definition of this table below)</span>
            },
        },
        <span class=com># add more user-defined XMP namespaces here...</span>
    },
    <span class=com># new PNG tags are added to the PNG::TextualData table:</span>
    'Image::ExifTool::PNG::TextualData' =&gt; {
        <span class=com># Example 12.  PNG:NewPngTag1</span>
        NewPngTag1 =&gt; { },
        <span class=com># Example 13.  PNG:NewPngTag2</span>
        NewPngTag2 =&gt; { },
        <span class=com># Example 14.  PNG:NewPngTag3</span>
        NewPngTag3 =&gt; { },
    },
    <span class=com># add a new MIE tag (NewMieTag1) and group (MIE-Test) to MIE-Meta
    # (Note: MIE group names must NOT end with a number)</span>
    'Image::ExifTool::MIE::Meta' =&gt; {
        <span class=com># Example 15.  MIE-Meta:NewMieTag1</span>
        NewMieTag1 =&gt; {
            Writable =&gt; 'rational64u',
            Units =&gt; [ 'cm', 'in' ],
        },
        <span class=com># new MIE "Test" group for example 16</span>
        Test =&gt; {
            SubDirectory =&gt; {
                TagTable =&gt; 'Image::ExifTool::UserDefined::MIETest',
                DirName =&gt; 'MIE-Test',
            },
        },
    },
    <span class=com># Composite tags are added to the Composite table:</span>
    'Image::ExifTool::Composite' =&gt; {
        <span class=com># Composite tags have values that are derived from the values of
        # other tags.  The Require/Desire elements below specify constituent
        # tags that must/may exist, and the keys of these hashes are used as
        # indices in the @val array of the ValueConv expression to access the
        # numerical (-n) values of these tags.  Print-converted values are
        # accessed via the @prt array.  All Require'd tags must exist for
        # the Composite tag to be evaluated.  If no Require'd tags are
        # specified, then at least one of the Desire'd tags must exist.  See
        # the Composite table in Image::ExifTool::Exif for more examples,
        # and lib/Image/ExifTool/README for all of the details.</span>
        BaseName =&gt; {
            Require =&gt; {
                0 =&gt; 'FileName',
            },
            <span class=com># remove the extension from FileName</span>
            ValueConv =&gt; '$val[0] =~ /(.*)\./ ? $1 : $val[0]',
        },
        <span class=com># the next few examples demonstrate simplifications which may be
        # used if only one tag is Require'd or Desire'd:
        # 1) the Require lookup may be replaced with a simple tag name
        # 2) "$val" may be used to represent "$val[0]" in the expression</span>
        FileExtension =&gt; {
            Require =&gt; 'FileName',
            ValueConv =&gt; '$val=~/\.([^.]*)$/; $1',
        },
        <span class=com># override CircleOfConfusion tag to use D/1750 instead of D/1440</span>
        CircleOfConfusion =&gt; {
            Require =&gt; 'ScaleFactor35efl',
            Groups =&gt; { 2 =&gt; 'Camera' },
            ValueConv =&gt; 'sqrt(24*24+36*36) / ($val * 1750)',
            <span class=com># an optional PrintConv may be used to format the value</span>
            PrintConv =&gt; 'sprintf("%.3f mm",$val)',
        },
        <span class=com># generate a description for this file type</span>
        FileTypeDescription =&gt; {
            Require =&gt; 'FileType',
            ValueConv =&gt; 'GetFileType($val,1) || $val',
        },
        <span class=com># calculate physical image size based on resolution</span>
        PhysicalImageSize =&gt; {
            Require =&gt; {
                0 =&gt; 'ImageWidth',
                1 =&gt; 'ImageHeight',
                2 =&gt; 'XResolution',
                3 =&gt; 'YResolution',
                4 =&gt; 'ResolutionUnit',
            },
            ValueConv =&gt; '$val[0]/$val[2] . " " . $val[1]/$val[3]',
            <span class=com># (the @prt array contains print-formatted values)</span>
            PrintConv =&gt; 'sprintf("%.1fx%.1f $prt[4]", split(" ",$val))',
        },
        <span class=com># [advanced] select largest JPEG preview image</span>
        BigImage =&gt; {
            Groups =&gt; { 2 =&gt; 'Preview' },
            Desire =&gt; {
                0 =&gt; 'JpgFromRaw',
                1 =&gt; 'PreviewImage',
                2 =&gt; 'OtherImage',
                <span class=com># (DNG and A100 ARW may be have 2 PreviewImage's)</span>
                3 =&gt; 'PreviewImage (1)',
                <span class=com># (if the MPF has 2 previews, MPImage3 could be the larger one)</span>
                4 =&gt; 'MPImage3',
            },
            <span class=com># ValueConv may also be a code reference
            # Inputs: 0) reference to list of values, 1) ExifTool object</span>
            ValueConv =&gt; sub {
                my $val = shift;
                my ($image, $bigImage, $len, $bigLen);
                foreach $image (@$val) {
                    next unless ref $image eq 'SCALAR';
                    <span class=com># check for JPEG image (or "Binary data" if -b not used)</span>
                    next unless $$image =~ /^(\xff\xd8\xff|Binary data (\d+))/;
                    $len = $2 || length $$image; <span class=com># get image length</span>
                    <span class=com># save largest image</span>
                    next if defined $bigLen and $bigLen &gt;= $len;
                    $bigLen = $len;
                    $bigImage = $image;
                }
                return $bigImage;
            },
        },
        <span class=com># **** ADD ADDITIONAL COMPOSITE TAG DEFINITIONS HERE ****</span>
    },
);

<a name='xmp-xxx'><span class=com># This is a basic example of the definition for a new XMP namespace.
# This table is referenced through a SubDirectory tag definition
# in the %Image::ExifTool::UserDefined definition above.
# The namespace prefix for these tags is 'xxx', which corresponds to
# an ExifTool family 1 group name of 'XMP-xxx'.</span></a>
%Image::ExifTool::UserDefined::xxx = (
    GROUPS =&gt; { 0 =&gt; 'XMP', 1 =&gt; 'XMP-xxx', 2 =&gt; 'Image' },
    NAMESPACE =&gt; { 'xxx' =&gt; 'http://ns.myname.com/xxx/1.0/' },
    WRITABLE =&gt; 'string', <span class=com># (default to string-type tags)</span>
    <span class=com># Example 8.  XMP-xxx:NewXMPxxxTag1 (an alternate-language tag)</span>
    <span class=com># - replace "NewXMPxxxTag1" with your own tag name (eg. "MyTag")</span>
    NewXMPxxxTag1 =&gt; { Writable =&gt; 'lang-alt' },
    <span class=com># Example 9.  XMP-xxx:NewXMPxxxTag2 (a string tag in the Author category)</span>
    NewXMPxxxTag2 =&gt; { Groups =&gt; { 2 =&gt; 'Author' } },
    <span class=com># Example 10.  XMP-xxx:NewXMPxxxTag3 (an unordered List-type tag)</span>
    NewXMPxxxTag3 =&gt; { List =&gt; 'Bag' },
    <span class=com># Example 11.  XMP-xxx:NewXMPxxxStruct (a structured tag)</span>
    <span class=com># - example structured XMP tag</span>
    NewXMPxxxStruct =&gt; {
        <span class=com># the "Struct" entry defines the structure fields</span>
        Struct =&gt; {
            <span class=com># optional namespace prefix and URI for structure fields
            # (required only if different than NAMESPACE above)
            # --> multiple entries may exist in this namespace lookup,
            # with the last one alphabetically being the default for
            # the fields, but each field may have a "Namespace"
            # element to specify which prefix to use</span>
            NAMESPACE =&gt; { 'test' =&gt; 'http://x.y.z/test/' },
            <span class=com># optional structure name (used for warning messages only)</span>
            STRUCT_NAME =&gt; 'MyStruct',
            <span class=com># optional rdf:type property for the structure</span>
            TYPE =&gt; 'http://x.y.z/test/xystruct',
            <span class=com># structure fields (very similar to tag definitions)</span>
            X =&gt; { Writable =&gt; 'integer' },
            Y =&gt; { Writable =&gt; 'integer' },
            <span class=com># a nested structure...</span>
            Things =&gt; {
                List =&gt; 'Bag',
                Struct =&gt; {
                    NAMESPACE =&gt; { thing =&gt; 'http://x.y.z/thing/' },
                    What  =&gt; { },
                    Where =&gt; { },
                },
            },
        },
        List =&gt; 'Seq', <span class=com># structures may also be elements of a list</span>
    },
<span class=com>    # Each field in the structure has a corresponding flattened tag that is
    # generated automatically with an ID made from a concatenation of the
    # original structure tag ID and the field name (after capitalizing the
    # first letter of the field name if necessary).  The Name and/or
    # Description of these flattened tags may be changed if desired, but all
    # other tag properties are taken from the structure field definition.
    # The "Flat" flag must be used when setting the Name or Description of a
    # flattened tag.  For example:</span>
    NewXMPxxxStructX =&gt; { Name =&gt; 'SomeOtherName', Flat =&gt; 1 },
);

<a name='MIE'><span class=com># Adding a new MIE group requires a few extra definitions</span></a>
use Image::ExifTool::MIE;
%Image::ExifTool::UserDefined::MIETest = (
    %Image::ExifTool::MIE::tableDefaults,   <span class=com># default MIE table entries</span>
    GROUPS      =&gt; { 0 =&gt; 'MIE', 1 =&gt; 'MIE-Test', 2 =&gt; 'Document' },
    WRITE_GROUP =&gt; 'MIE-Test',
    <span class=com># Example 16.  MIE-Test:NewMieTag2</span>
    NewMieTag2  =&gt; { },     <span class=com># new user-defined tag in MIE-Test group</span>
);

<a name='Lenses'><span class=com># A special 'Lenses' list can be defined to give priority to specific lenses
# in the logic to determine a lens model for the Composite:LensID tag</span></a>
@Image::ExifTool::UserDefined::Lenses = (
    'Sigma AF 10-20mm F4-5.6 EX DC',
    'Tokina AF193-2 19-35mm f/3.5-4.5',
);

<a name='FileTypes'><span class=com># User-defined file types to recognize</span></a>
%Image::ExifTool::UserDefined::FileTypes = (
    XXX =&gt; { <span class=com># &lt;-- the extension of the new file type (case insensitive)</span>
        <span class=com># BaseType specifies the format upon which this file is based (case
        # sensitive).  If BaseType is defined, then the file will be fully
        # supported, and in this case the Magic pattern should not be defined</span>
        BaseType =&gt; 'TIFF',
        MIMEType =&gt; 'image/x-xxx',
        Description =&gt; 'My XXX file type',
        <span class=com># if the BaseType is writable by ExifTool, then the new file type
        # will also be writable unless otherwise specified, like this:</span>
        Writable =&gt; 0,
    },
    YYY =&gt; {
        <span class=com># without BaseType, the file will be recognized but not supported</span>
        Magic =&gt; '0123abcd',    <span class=com># regular expression to match at start of file</span>
        MIMEType =&gt; 'application/test',
        Description =&gt; 'My YYY file type',
    },
    ZZZ =&gt; {
        <span class=com># if neither BaseType nor Magic are defined, the file will be
        # recognized by extension only.  MIMEType will be application/unknown
        # unless otherwise specified</span>
        Description =&gt; 'My ZZZ file type',
    },
    <span class=com># if only BaseType is specified, then the following simplified syntax
    # may be used.  In this example, files with extension "TTT" will be
    # processed as JPEG files</span>
    TTT =&gt; 'JPEG',
);

<a name='PREF'><span class=com># Change default location for writing QuickTime tags so Keys is preferred
# (by default, the PREFERRED levels are: ItemList=2, UserData=1, Keys=0)</span></a>
use Image::ExifTool::QuickTime;
$Image::ExifTool::QuickTime::Keys{PREFERRED} = 3;

<span class=com># Specify default ExifTool option values
# (see the <a href="ExifTool.html#Options">Options function documentation</a> for available options)</span>
%Image::ExifTool::UserDefined::Options = (
    CoordFormat =&gt; '%.6f',  <span class=com># change default GPS coordinate format</span>
    Duplicates =&gt; 1,        <span class=com># make -a default for the exiftool app</span>
    GeoMaxHDOP =&gt; 4,        <span class=com># ignore GPS fixes with HDOP &gt; 4</span>
    RequestAll =&gt; 3,        <span class=com># request additional tags not normally generated</span>
);

<span class=com>#------------------------------------------------------------------------------</span>
1;  <span class=com>#end</span>
</pre>
<hr>
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